Table 3 pH of the biomass, biochar and ashes in water (Mean ± standard deviations of three measurements)

From: Evaluation of Biochar Post‐Process Treatments to Produce Soil Enhancers and Phosphorus Fertilizers at a Single Plant

Sample pH Sample pH
Sewage sludge 5.62 ± 0.03 Poultry manure 9.44 ± 0.04
Biochar 8.59 ± 0.02 Biochar 10.67 ± 0.02
Oxidation ash 9.03 ± 0.03 Oxidation ash 11.88 ± 0.045
Gasification ash 11.66 ± 0.03 Gasification ash 12.64 ± 0.01
Biogas fiber 7.63 ± 0.02 Woodchips 4.39 ± 0.00
Biochar 10.38 ± 0.01 Biochar 9.00 ± 0.01
Oxidation ash 10.60 ± 0.02 Oxidation ash 12.08 ± 0.01
Gasification ash 11.73 ± 0.01 Gasification ash 12.39 ± 0.01
Cattle manure 7.85 ± 0.01 Wheat straw 7.38 ± 0.04
Biochar 10.63 ± 0.04 Biochar 10.02 ± 0.025
Oxidation ash 11.48 ± 0.01 Oxidation ash 11.56 ± 0.01
Gasification ash 12.49 ± 0.01 Gasification ash 11.71 ± 0.015